Title:
RAILWAY VEHICLE SLEEPER BEAM, UNDERFRAME AND UNDERFRAME WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/068498
Kind Code:
A1
Abstract:
A railway vehicle sleeper beam, comprising a sleeper beam main body, end portion cover plates (302), and floor connecting profiles (307) welded on two longitudinal sides of the sleeper beam main body; the outer sides of the floor connecting profiles at the two longitudinal ends of the sleeper beam main body are respectively welded to floors (305, 306), and the top surface of the sleeper beam main body is flush with the top surfaces of the floors; process notches (q2) are provided at two sides of the top surface of the sleeper beam main body; a rib plate at the inner side of the sleeper beam main body and the inner side of a side beam of an underframe are welded by means of a vertical welding seam therebetween, the end portion cover plates cover the process notches, the peripheries of the end portion cover plates are welded to the sleeper beam main body, the top surface of the sleeper beam main body and the side beam of the underframe are welded by means of a longitudinal welding seam therebetween, a rib plate at the outer side of a sleeper beam of the sleeper beam main body and the side beam of the underframe are welded by means of a vertical welding seam therebetween, and the bottom surface of the sleeper beam main body and the side beam of the underframe are welded by means of a longitudinal welding seam therebetween. Further disclosed are an underframe and an underframe welding method.
Inventors:
LI LI (CN)
SU KE (CN)
LIU YONGQIANG (CN)
ZHONG LEI (CN)
WANG GUOJUN (CN)
ZHANG CHANGGENG (CN)
SU KE (CN)
LIU YONGQIANG (CN)
ZHONG LEI (CN)
WANG GUOJUN (CN)
ZHANG CHANGGENG (CN)
Application Number:
PCT/CN2020/088909
Publication Date:
April 15, 2021
Filing Date:
May 07, 2020
Export Citation:
Assignee:
CRRC ZHUZHOU LOCOMOTIVE CO LTD (CN)
International Classes:
B61F1/08
Foreign References:
| CN110588693A | 2019-12-20 | |||
| CN104354709A | 2015-02-18 | |||
| CN104354710A | 2015-02-18 | |||
| CN107628050A | 2018-01-26 | |||
| CN109352203A | 2019-02-19 | |||
| JP2019131090A | 2019-08-08 | |||
| JP2017105239A | 2017-06-15 | |||
| JPH0796835A | 1995-04-11 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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